英语词汇“distress signal”是什么意思，“distress signal”的读音、用法及例句翻译-乐坝网

词汇	distress signal
释义	distress signaln.（名词） An international signal used by a distressed ship or aircraft to request help, as by radio broadcasts, flags, or flares.遇难（呼救）信号：处于险境中的船只或飞行器，如通过无线电广播、旗帜或照明弹来呼救的国际通用信号
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